Adding-machine.



No. 865,200. PATENTED SEPT. 3, 1907.

G. P. & T. G. MOORE.

ADDING MACHINE.

APPLICATION FILED JAN.4,1907.

2 SHEETS-SHEET 1.

W W 2W3 1 1 A TTOHNE Y8 IINVENTOH' 5 CHARLES P. MUEIPLE. Tami s B. MD UHF.

No. 865,200. PATENTED SEPT. 3', 1907.

G. P. & T. G. MOORE. ADDING MACHINE. APPLICATION rnpnn JAN. 4, 1907.

a sums-sum a.

A TTOHNEYS THOMAS Moons, citizens of the l'nited States, re-

o v To all whom it may comm-n:

,iul Improvement inndding-lilaehines. of which the 3 venient adding machine designed to he carried in the palm of the hand and be operated by the thumb and ,lorefingerof the hand. sustaining it, leaving the other hand of the accountant free to'handle a pencil and keep placeinthe column of figures, as they are added rnent of parts operating upon the above described principle as will be hereinafter more fully described withreference to the drawings in which section on. line 2+2 of Fig. 1 looking in the direction of Fig. 2. Fig.

25. Fig. 4. Figs. 6 and-7 are opposite face Views in per- [is anend yiew in detail of the turning button I) and 1 Fig. 9 is a detail in persepctive of the yoke l'onrend-f into ten equal parts which bear in regular succession tata-ble The two end wheels have outside collars r Trim) sTn gns PATENT OFFICE.

" -o'nixntn's noonn AND 'riionits o. MOORE, or 'niricxsix'tio i,nicsrvinoixtt ADDING-MACHINE Beit known that 'we, Cnx nnns P. Moons and siding at Ravcnswood, in the county of Jackson and i State-oi West Virginia, have invented a new and usefollowing is a specific-at ion. Our intention is in thenature of a small and conon the machine I It consists in the novel construction and arrange- Figure 1 is a top face view of the machine in position in the hand for operation. Fig. 2 is a yertical of the arrow. Fig. 3 is a vertical scctionon line 3-& of Fig. 1. Fig. 4 is a horizontal section on line 4--t 5 is a vertical section on line 55 of spective, oftwo juxtaposed adding wheels. Fig. S

v Specification of Letters Patent. Application and J ar uary 4, 19.07. Serial'llo- 350,716.:

justing the adding wheels to '/.ero.

In the drawing, A'represents a rectangular case of i a size adapted to'be conveniently grasped in. the palm of the'hand. This case contains a series'of adding progresses. 'l.his tnr1 1ing oi' the adding wheels is effected by-tlie action oi two plungers working at right One of these plungers G is worked by the forefinger, as seen in Fig. l, and this plunger is theworking plunger which actually turns the wheels.

is under the control-of the thumb and its function is W W W W W are the adding Wheels of different denomination. W represents units, W tens, W hunthe figures to'9. Each wheel is independently rotliat swivel in annularbearings in standards F F'as seen 'in Fig. 2, and each inside wheel has collar y, Fig. 6, that fits into'a corresponding annular recess y, Fig. 7 ,"of the adjacent wheel and as the end Wheels are supported in the standards F F and all the inner wheels are interlocked by their collars and recesses it willbe seen that the wheels mutually sustain each Patented Sept. '3, 1907.

other in swiveling relation without a central shaft. 'l hrough the center of each whccl there. is formed an axial channelway rf'see Figs. and T. of angular or ing and passing through the. clnuinelu'ny 1' of can-hv wheel or oi stopping. in the plane of any one whet-l. \Vhen so stopped in thc plane ot' any wheel and rotated, it locks with and rotates that wheel, all other wheels being held stationary.

For holding the wheelsstationary and locking them, with the numbers on the face of one wheel in :ilincnicnt with the numbers onthe faces of the other \Vliccls. each wheel has on its periphery equally spaced nolchcs f, see Figs. and (3,,into which engage a correspoinling series of spring lingers h l igs. 2, 4 and but as the wheels are turned in the direction of the arrow in Fig. 5 each spring finger leaves its notches until another notch comes above it, making a change in the numeral on the face of the wheel showing through the window r in the top of the case.-

\\'hen the selectiveplunger B carries the head 1) into the plane of any wheel its position in relation to that wheel is indicatcd externally to the eye of the operator by a marker bar B. This bar, see Figs. land 2, is connected to the plunger [tin a loose swiveling manner and rises therefrom to, near the top of the case and then is bent at right angles and passes'horimntnlly into the case just below lllc glazed window 1!. and above the adding wheels and terminates immediately above the bead b of the plunger-ll so that when the plunger head I) is in the plane of anyztd'ding wheeluthe end of the marker bar B also lies innneil'iatelyabove that same wheel in full view of the operator and thus indicates to the :operator the part iculnr denomination which he is to operate in for adding i E isa spiral spring arranged in the central channel of the adding whee and bearing at one end against the plunger head I) and at the other end against a cupshaped button I).

The plunger B is forced in and its head I) compresses the spring E and when the pressure of the thumb on the plunger 13 is released the spring E carries the plunger head b in the oppositedirection and may carry it entirely out of the adding wheels, as indicated by dotted lines in 1* 2 Having shown how the plunger B may select and engage any one of the adding wheels, we will now proceed to describe how that adding wheel is rotated at delinite number of spaces to effect the addition. For this purpose the plunger shalt It is rotatable in it's terminalg is held against back movement by a detent a. The

main operating plunger C which is thrust in by the forefinger is formed within the case with a straight series of ratchet teeth (I which are pressed into engagement with the subjacent ratchet'wheel a by a spring 1: depending from the top of the case. The plunger C is normally held out of the case by its spring 0, but- When pressed inwardly by the forefinger, as indicated in Fig. 3, the teeth 'd engage and turn the ratchet wheel a and with it the squared shaft of the plunger B, thus giving the selecting plunger head the necessary rotation to turn the Wheel with which it may be engaged. The ratchet wheel a is restrained against lateral movement between two uprights K and L, Fig. 2, and the plunger C is also guided between these uprights just above the wheel.

To enable the operator to know how many spaces to turn any wheel the top of the plunger C, see Figs. 1 and 4, is laid off in graduations and numbered to correspond to the progression of the numerals on the face of the adding wheels, so that when the operator notes the number of figures which have passed into the case he knows he has turned the adding wheel that number of spaces and has added that number of digits.

When a long column of a given denomination is to be added the selective plunger B may be forced in to coaction with that wheel and held there as long as desired. For this purpose the shaft of plunger B is provided with a series of transverse grooves s spaced apart a distance equal tothe distance between the center planes of the adding wheels. A detent bar C see Fig. 3, is arranged to be held out of engagement with the grooves s of the plunger by a spring c but the forefinger may be shifted to the button on the end of bar C to force it in and cause its inner end to enter one of the grooves s of plunger B and when so engaged bar 0 is locked by a notch *rfengaging the side of the case. As long as the locking device is engaged the plunger 0 will always turn the same denomination of adding wheel. To disengage the locking devices the bar C is pushed up by the forefinger and thespring c throws it out of engagement.

When any adding wheel is rotated through ten spaces it must carry one-to the next wheel of higher denomination. For this purpose each adding wheel has an elbow spring 9, see Figs. 5, 6, 7, the outer end of which projects radially through a hole in the flange of the wheel and the inner end of which is bent to the curve of the wheel and is secured to the flange as seen in Fig. 5. This elbow spring may be forced inwardly, as in dotted lines in Figs. 5 and 7, so as to come in range of engagement with ratchet teeth to on the next adjacent wheel of higherdenomination and so turns that one notch, the ratchet teeth to being of the same number as the figures on the adding wheel. In order to thrust the elbow spring in to carry to the next wheel a stationary cam bar M, see Figs. 5 and 9, is arranged above the adding wheels in parallel position to their axis and as its lower face is inclined or wedge shaped the wheels in carrying the projecting springs g under it are forced inwardly to effect engagement with the ratchet teeth of the next wheel. After the spring passes cam bar M the spring again moves' outwardly and is thereby disengaged from the next wheel so that the latter is only turned one tooth. The cam bar M is formed as a yoke with ring shaped ends in and m, as seen in Fig.- 9, and these rings swivel inside of the standards F or are capable of being adjusted therein in a rotary manner. This is to cause the bar M to catch against and aline all of the springs 9 so as to restore all wheels to zero preparatory to beginning a new addition. For turning this yoke-shaped cam bar, one of its rings in is made wide and screw threaded and into it is screwed in rigid engagement the cup-shaped flange of the button D as seen in Fig. 2. Now by turning the button D a rotary swing is given to the bar M. To lock it stationary a spring catch 2', see Figs. 4 and 8, engages a notch in the flange of the button D and is released therefrom by being pushed in by the finger when seizing the button D to turn it.

To hold the case firmly in the hand, when adding, a 100px, Fig. 1, is arranged to receive one or more of the fingers.

An important distinction in'my invention is to be found in making the annular bearings for the end adding wheels of larger size than the central channelways and smaller than the wheel itself. This not only avoids the necessity of an axial shaft, but it allows the central channelway to open, through the annular bearing for the insertion of the plunger. and with a minimum of rotary friction consistent with acentrally per-' forated wheel.

We claim 1. An adding machine, comprising a case with adding wheels and two plunger-s at right angles to each other, one of which is arranged to select the adding wheel and the other; to turn the adding wheel.

2. An adding machine. comprising a case with adding wheels, a selecting plunger for selecting the adding wheel, and a turning plunger for turning the adding wheel, the case and plungers being made of dimensions to be held in one hand and be operated by the thumb and a finger of that hand.

3. An adding machine. comprising a case, a series of wheels each having a registering central channel of po lygonal form, a plunger movable through said channels and having a polygonal head closely fitting the central channels for interlocking with any wheel, annular bearings smaller than the wheels and of greater diameter than the central channel located at the ends of the series of wheels and outside of the same, for holding the end wheels in alinement'to form an open central channelway, means for holding the inner wheels in alinement and means for turning the wheels.

4. An adding machine, comprising a case, a series of centrally perforated adding wheels, annular bearings smaller than the wheels located outside of the end wheels of the series for holding the wheels in alinement to form an open central channeiway. said annular bearings being larger than the central channelway. means for holding the inner wheels in alinement, a selecting plunger with a locking head movable through the wheels into the plane of any one of the wheels and an operating plunger arranged at rightangles to the selecting plunger and means connecting the two plu'ngers for converting the reciprocating movement of one into a rotary movement of the other.

5. An adding machine, comprising a case, a series of centrally perforated adding wheels, annular bearings smaller than the wheels located outside the end wheels of the series for holding the end wheels in alinement to form an open central channelway, the annular bearing being larger than the central channelway, means for holding the inner wheels in nlinement, a plunger with interlocking head, an attached marker for the plunger extending over the tops of the adding wheels and inside the ease to indicate the plane of the interlocking head, and means for turning said head.

6. An adding machine, comprising a case, centrally perforated adding wheels, :1 plungerwithinterlocking head movable through all the wheels, said plunger having equally spaced transverse grooves corresponding to the spacing of the adding wheels, and a locking device engaging said grooves to hold said plungers to a fixed position as regards longitudinal inovementf 7. An adding machine, comprising a series of alined centrally perforated adding wheels, an axial selecting plunger movable at right angles to the plane of the wheels, a central spring for forcing the plunger in one direction and a removable holder for the end of the spring.

8. In an adding machine, the carrying devices, consisting of ratchet teeth on one wheel and an elbow spring on the adjacent wheel lying in the plane of the above named 9. In an adding machine, the combination with a set of adding wheels having projecting carrying springs; of a yokeshaped cam'bar hung, coaxially to the adding wheels and an external axially arranged handle for axially swinging the yoke-shaped cam-bar and means for locking the same.

10. In an adding machine, a series of coaxially arranged adding wheels having an open central channelway and interlocking and swiveling collars and recesses, the end wheels having also external collars, supporting bearings for these external collarsfand means for selecting and turning the adding wheels.

CHARLES P. MOORE. THOMAS G. MOORE. Witnesses:

W H. FLEMIN J. H. WETZEL. 

